Any way to stop Firestick dropping frames?
Discussion
Its fine on UK/Euro produced 50Hz 25P/50i stuff but when it is on US 24p or 60i stuff it just drops frames as it tries to CONVERT the source to its menu set 50Hz output. It doesnt do a good job!!! It drops frames on 60Hz and repeats a frame on 24p - every one second. Drives me potty! I guess there is no solution other than a Smart TV...?
When I read the OP I was thinking 'but mine doesn't do that...'
But mine is the Fire TV, not the stick. Anyway, I just checked some 'Bosch' and 'Mozart in the Jungle', frame rate is reported by the projector as 23.99 Hz. On 1080p/60 material the frame rate is reported as 59.94 Hz. That's with everything on Auto. I've never noticed any dropped frames or judder.
So being curious I plugged in a Fire Stick from upstairs, and it seems to be on 60.14 Hz for the same material, again on Auto. What material shows the problem?
(For completeness, both the Fire TV and the Fire Stick are on Fire OS 5.2.1.1)
But mine is the Fire TV, not the stick. Anyway, I just checked some 'Bosch' and 'Mozart in the Jungle', frame rate is reported by the projector as 23.99 Hz. On 1080p/60 material the frame rate is reported as 59.94 Hz. That's with everything on Auto. I've never noticed any dropped frames or judder.
So being curious I plugged in a Fire Stick from upstairs, and it seems to be on 60.14 Hz for the same material, again on Auto. What material shows the problem?
(For completeness, both the Fire TV and the Fire Stick are on Fire OS 5.2.1.1)
karma mechanic said:
When I read the OP I was thinking 'but mine doesn't do that...'
But mine is the Fire TV, not the stick. Anyway, I just checked some 'Bosch' and 'Mozart in the Jungle', frame rate is reported by the projector as 23.99 Hz. On 1080p/60 material the frame rate is reported as 59.94 Hz. That's with everything on Auto. I've never noticed any dropped frames or judder.
So being curious I plugged in a Fire Stick from upstairs, and it seems to be on 60.14 Hz for the same material, again on Auto. What material shows the problem?
(For completeness, both the Fire TV and the Fire Stick are on Fire OS 5.2.1.1)
Do you see the screen re-clock/go to black mate as you select US originated v say a BBC drama? Yours seems to switch nicely and feed the TV with whatever source framerate it gets - natively.But mine is the Fire TV, not the stick. Anyway, I just checked some 'Bosch' and 'Mozart in the Jungle', frame rate is reported by the projector as 23.99 Hz. On 1080p/60 material the frame rate is reported as 59.94 Hz. That's with everything on Auto. I've never noticed any dropped frames or judder.
So being curious I plugged in a Fire Stick from upstairs, and it seems to be on 60.14 Hz for the same material, again on Auto. What material shows the problem?
(For completeness, both the Fire TV and the Fire Stick are on Fire OS 5.2.1.1)
Ken Figenus said:
Do you see the screen re-clock/go to black mate as you select US originated v say a BBC drama? Yours seems to switch nicely and feed the TV with whatever source framerate it gets - natively.
I'll have a look later but I didn't actually see any 50Hz material, I did try 'The Fall' but that was at 60 on the Stick (and it played fine). Strangely, the Stick also had the UHD versions of shows in the 'Recent' list, and it would play them as 1080p but still showing the UHD legend at the top when paused. Presumably a UHD stream being downscaled. It is also worth noting that the Fire TV 4k box has got a completely new firmware with a new GUI coming along - mine hasn't picked it up yet. Generally the stick gets the same firmware. Whether that gives any improvement remains to be seen, and the rollout may be halted anyway: http://www.aftvnews.com/amazon-fire-tv-software-up...
99.99% definite they would have shot The Fall 25P
Light reading BBC Spec: http://dpp-assets.s3.amazonaws.com/wp-content/uplo...
2.1 High Definition Format
All material delivered for UK HD TV transmission must be:
 1920 x 1080 pixels in an aspect ratio of 16:9
 25 frames per second (50 fields) interlaced - now known as 1080i/25.
 colour sub-sampled at a ratio of 4:2:2
The HD format is fully specified in ITU-R BT.709-5 Part 2.
No artificial de-interlacing allowed:
2.1.3 Film motion or ‘film effect’
It is not acceptable to shoot in 1080i/25 and add a film motion effect in post-production. Most High
Definition cameras can capture in either 1080i/25 or 1080p/25. Where film motion is a requirement,
progressive capture is the only acceptable method.
Why yours doesn't stutter locking to 60Hz (prob US 60Hz = 59.978) on a std 50Hz source I dont know!
Watched Vikings on it last night in auto mode - counted 3789 dropped frames and went to bed fuming!
Light reading BBC Spec: http://dpp-assets.s3.amazonaws.com/wp-content/uplo...
2.1 High Definition Format
All material delivered for UK HD TV transmission must be:
 1920 x 1080 pixels in an aspect ratio of 16:9
 25 frames per second (50 fields) interlaced - now known as 1080i/25.
 colour sub-sampled at a ratio of 4:2:2
The HD format is fully specified in ITU-R BT.709-5 Part 2.
No artificial de-interlacing allowed:
2.1.3 Film motion or ‘film effect’
It is not acceptable to shoot in 1080i/25 and add a film motion effect in post-production. Most High
Definition cameras can capture in either 1080i/25 or 1080p/25. Where film motion is a requirement,
progressive capture is the only acceptable method.
Why yours doesn't stutter locking to 60Hz (prob US 60Hz = 59.978) on a std 50Hz source I dont know!
Watched Vikings on it last night in auto mode - counted 3789 dropped frames and went to bed fuming!
To get from the original to 60Hz they would have been using 3:2 pulldown, so 3 copies of a frame followed by 2 of the next and so on. I wonder whether my projector detects this automatically and is doing reverse 3:2 pulldown internally so it ends up smooth again. On your TV it might be worth trying 'film mode' or whatever motion settings you've got to see if the jerkyness can be worked round that way.
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